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Finding the Third Proportional to 637,218 and 977,940

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Solution

The third proportional to 637,218 and 977,940 is: 1,500,846.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,218 : 977,940 = 977,940 : x
  2. Step 2: Convert to fraction form
    637,218/977,940 = 977,940/x
  3. Step 3: Cross multiply
    637,218x = 977,940 × 977,940
  4. Step 4: Simplify right side
    637,218x = 956,366,643,600
  5. Step 5: Solve for x
    x = 956,366,643,600/637,218
  6. Step 6: Final answer
    x = 1,500,846.87

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.